CVE-2022-24959 - Missing Release of Memory after Effective Lifetime

Severity

55%

Complexity

18%

Confidentiality

60%

An issue was discovered in the Linux kernel before 5.16.5. There is a memory leak in yam_siocdevprivate in drivers/net/hamradio/yam.c.

CVSS 3.1 Base Score 5.5. CVSS Attack Vector: local. CVSS Attack Complexity: low. CVSS Vector: (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H).

CVSS 2.0 Base Score 2.1. CVSS Attack Vector: local. CVSS Attack Complexity: low. CVSS Vector: (AV:L/AC:L/Au:N/C:N/I:N/A:P).

Demo Examples

Missing Release of Memory after Effective Lifetime

CWE-401

The following C function leaks a block of allocated memory if the call to read() does not return the expected number of bytes:


               
}

                     
return buf;
return NULL;

                           
return NULL;

Overview

Type

Linux

First reported 3 years ago

2022-02-11 06:15:00

Last updated 2 years ago

2022-05-11 14:44:00

Affected Software

Linux Kernel

Debian Linux 9.0

9.0

References

https://github.com/torvalds/linux/commit/29eb31542787e1019208a2e1047bb7c76c069536

https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.16.5

https://github.com/torvalds/linux/commit/29eb31542787e1019208a2e1047bb7c76c069536

Patch, Third Party Advisory

https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.16.5

Release Notes, Vendor Advisory

DSA-5096

[debian-lts-announce] 20220309 [SECURITY] [DLA 2941-1] linux-4.19 security update

DSA-5092

DSA-5096

Third Party Advisory

[debian-lts-announce] 20220309 [SECURITY] [DLA 2941-1] linux-4.19 security update

Mailing List, Third Party Advisory

DSA-5092

Third Party Advisory

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